Maryland Biological Stream Survey

The Maryland Biological Stream Survey (MBSS) uses random sampling to determine the status of wadeable streams and rivers in Maryland. Since 1994, biologists have collected water samples, biological, and habitat data for over 2800 stream sites in Maryland!

Status

Special project sampling was done in 2005-2006, to address issues uncovered in the first two rounds, along with planning for Round Three Random Sampling (2007-2009).We also examined our data with respect to species of interest to other groups within the Maryland DNR. Publications with the latest results are posted on the "What's New?" page.

Maps

The maps below indicate the watersheds we will be sampling in Round 3. Click on the image to download a print-quality 700KB pdf file of each map.

Reports and Publications

The most recent MBSS related publications are listed on the "What's New?" page. All other MBSS related publications that are available online can be found from this list of MBSS publications.

Training

• For MBSS protocols and procedures, contact Dan Boward via e-mail or voice mail 410-260-8605.
• For Stream Waders, use the Stream Waders Volunteer link (in the right-hand table) to get the latest information. Details for 2008 Stream Waders training will be available on page: Stream Waders - What's New in January 2008.